Both teams have something to prove each coming off bad losses. The Suns were blown out at home by the Spurs, 111-85, while the Bucks fell to the Grizzlies, 128-115, at home. Both of these losses occurred this past Saturday so the teams may have gotten caught peeking ahead to this marquee matchup. 

These are two of the best teams in the NBA. So I'm expecting an intense, playoff-type defensive effort.

Yes, there are great scorers on the court. But each team is excellent defensively, too, with the Suns ranking fourth in scoring defense and fifth in 3-point defense, while the Bucks ranking fifth in defensive field goal percentage. 
This is the Suns' first road game in 11 days. Discounting their away contest against the hapless Rockets, the Suns have averaged just 99 points during their last three road games. 

Giannis Antetokounmpo will be playing for the third time since being out six games with a knee injury. The Bucks aren't rushing him. He played fewer than 30 minutes against the Grizzlies, which is down from his usual 34-minutes of court time. 

The Under has cashed five of the last six times the teams have met in Milwaukee.